<?php

declare(strict_types=1);

/*
 * This file is part of the package t3g/blog.
 *
 * For the full copyright and license information, please read the
 * LICENSE file that was distributed with this source code.
 */

namespace Evoweb\EwBloggy\Controller;

use DateTimeImmutable;
use Psr\Http\Message\ResponseInterface;
use Evoweb\EwBloggy\Domain\Repository\PostRepository;
use Evoweb\EwBloggy\Pagination\BlogPagination;
use T3G\AgencyPack\Blog\Service\MetaTagService;
use T3G\AgencyPack\Blog\Utility\ArchiveUtility;
use TYPO3\CMS\Extbase\Mvc\Controller\ActionController;
use TYPO3\CMS\Extbase\Pagination\QueryResultPaginator;
use TYPO3\CMS\Extbase\Persistence\QueryResultInterface;
use TYPO3\CMS\Extbase\Utility\LocalizationUtility;

class PostController extends ActionController
{
    public function __construct(protected PostRepository $postRepository)
    {
    }

    protected function initializeView(): void
    {
        foreach (($this->settings['flexform'] ?? []) as $key => $value) {
            if (!empty($value)) {
                $this->settings[$key] = $value;
            }
        }
        if (isset($this->settings['flexform'])) {
            unset($this->settings['flexform']);
        }
        $this->view->assign('settings', $this->settings);
        $this->view->assign('data', $this->request->getAttribute('currentContentObject')?->data ?? null);
    }

    /**
     * Show a list of recent posts.
     */
    public function listRecentPostsAction(int $currentPage = 1): ResponseInterface
    {
        $maximumItems = (int) ($this->settings['lists']['posts']['maximumDisplayedItems'] ?? 0);
        $posts = (0 === $maximumItems)
            ? $this->postRepository->findAll()
            : $this->postRepository->findAllWithLimit($maximumItems);
        $pagination = $this->getPagination($posts, $currentPage);

        $this->view->assign('posts', $posts);
        $this->view->assign('pagination', $pagination);
        return $this->htmlResponse();
    }

    /**
     * Show a number of latest posts.
     */
    public function listLatestPostsAction(): ResponseInterface
    {
        $limit = (int) ($this->settings['limit'] ?? 3);
        $posts = $this->postRepository->findAllWithLimit($limit);
        $this->view->assign('posts', $posts);
        return $this->htmlResponse();
    }

    /**
     * Show posts beyond a certain date
     */
    public function listPostsByDateAction(
        ?int $year = null,
        ?int $month = null,
        int $currentPage = 1
    ): ResponseInterface {
        if ($year === null) {
            $posts = $this->postRepository->findMonthsAndYearsWithPosts();
            $this->view->assign('archiveData', ArchiveUtility::extractDataFromPosts($posts));
        } else {
            $dateTime = new DateTimeImmutable(sprintf('%d-%d-1', $year, $month ?? 1));
            $posts = $this->postRepository->findByMonthAndYear($year, $month);
            $pagination = $this->getPagination($posts, $currentPage);
            $this->view->assign('type', 'bydate');
            $this->view->assign('month', $month);
            $this->view->assign('year', $year);
            $this->view->assign('timestamp', $dateTime->getTimestamp());
            $this->view->assign('posts', $posts);
            $this->view->assign('pagination', $pagination);
            $title = str_replace(
                [
                    '###MONTH###',
                    '###MONTH_NAME###',
                    '###YEAR###',
                ],
                [
                    $month,
                    $dateTime->format('F'),
                    $year,
                ],
                (string) LocalizationUtility::translate('meta.title.listPostsByDate', 'ew_bloggy')
            );
            MetaTagService::set(MetaTagService::META_TITLE, (string) $title);
            MetaTagService::set(
                MetaTagService::META_DESCRIPTION,
                (string) LocalizationUtility::translate('meta.description.listPostsByDate', 'ew_bloggy')
            );
        }
        return $this->htmlResponse();
    }

    protected function getPagination(QueryResultInterface $objects, int $currentPage = 1): ?BlogPagination
    {
        $maximumNumberOfLinks = (int) ($this->settings['lists']['pagination']['maximumNumberOfLinks'] ?? 0);
        $itemsPerPage = 10;
        if ($this->request->getFormat() === 'html') {
            $itemsPerPage = (int) ($this->settings['lists']['pagination']['itemsPerPage'] ?? 10);
        }

        $paginator = new QueryResultPaginator($objects, $currentPage, $itemsPerPage);
        return new BlogPagination($paginator, $maximumNumberOfLinks);
    }
}